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You are here:Home » Culture Media » Media-Microbiological » Tryptic Soy Agar (Powder)

Tryptic Soy Agar (Powder)


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USP medium for total aerobic portion of microbial limit test. A primary media for preparing blood plates.
Catalog #T8727
Tryptic soy agar (TSA) is a general-purpose base medium used for the cultivation of fastidious microorganisms. TSA is a highly nutritious medium consisting of soybean-casein digest. The addition of blood to TSA facilitates the growth of more fastidious microorganisms. Allowing for the interpretation of hemolytic reactions
HemolysisBeta Hemolysis: Clear zone surrounding the colony indicating complete lysis of the red blood cells.
Alpha Hemolysis: Green discoloration surrounding the colony indicating partial lysis of the red blood cells.
Alpha Prime Hemolysis: Green discoloration followed by a clear zone.
Gamma Hemolysis: No lysis of the red blood cells surrounding the colony.
Note: Hemolysis may vary with the microorganism and/or the blood source.
AppearanceTan, homogenous, free flowing powder
Yellow, trace to slightly hazy after autoclaving
pHAs Reported
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate namesSoybean-Casein Digest Agar Medium

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